CXD2931R Просмотр технического описания (PDF) - Sony Semiconductor

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производитель

CXD2931R

1 chip GPS LSI

Sony Semiconductor 

CXD2931R

Performance

• 16-channel GPS receiver

• High performance 32-bit RISC CPU

• Reception frequency

1575.42MHz (L1 band, CA code)

• Reception sensitivity (using the CXA1951AQ in the RF block)

–130dBm or less

• Time to first fix∗ (time until initial measurement after power-on)

Cold Start (without ephemeris and almanac) 35 to 60s

Warm Start (without ephemeris with almanac) 33 to 50s

Hot Start (with ephemeris and almanac)

6 to 20s

Reacquisition Time (interrupt recovery time) Less than 5 minutes: < 3 to 6s

5 minutes or more: < 6 to 10s

• Positioning accuracy

Stand alone (GPS unit only)

D-GPS (differential GPS)

1σ: < 30m

3σ: < 90m

1σ: < 6m

3σ: < 18m

• Measurement data update time Every 1s

• Communication method

Sony standard serial communication

Supports NMEA-0183

• All-in-view measurement

• 2-satellite measurement

• High performance 32-bit RISC CPU

∗ The noted values may be exceeded depending on the operating environment and other conditions.

Antenna

CXA1951AQ

RF Converter

0V

0V

TCXO

IF

CXD2931R

16ch GPS Processor

TXD

RXD

GPS receiver system diagram using the CXD2931R

–2–

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